Embedded Files
Functional Objectives
Functional Objectives
Measure tidal volume
Measure respiratory rate
Measure %CO2 concentration
Design Requirements
Design Requirements
Structurally withstand 6 ATM
Voltage < 12V
Handheld size (< 5 lbs)
Operates automatically after it's turned on
Attachable to currently used ventilator masks
Autoclavable
Pitot Tube Rationale
Pitot Tube Rationale
The pitot tube method includes measuring the pressure exerted by the moving air and converting that pressure to a volumetric flow rate then adding the flow rates over the time of an exhalation to a obtain a volume.
Benefits of Pitot Tubes:
Unlike the Wright Spirometer, there are no moving parts that can complicate the production of the device and be susceptible to failure.
Minimal electronic devices are required, which keeps the voltage of the device low.
Tidal volume and respiration rate are continuously measured without needing manual reset.
Flow/Tidal Volume Derivation
Flow/Tidal Volume Derivation
Fluid density calculation
Air flow velocity derivation from Bernoulli's equations
Flow volume per timestep calculation
Tidal Volume integration
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